Elastic-fluid turbine.



No. 866,171. J PATENTED SEPT. 17, 1907.

I G. WBSTINGHQUSB. ELASTIC FLUID TURBINE;

PPPPP OATION FILED EAR. 28. 1905.

WITNESSES: Q INVENTQR a 10 \mczrzw No. 866,171. PATENTED SEPT. 17, 1907 G. WESTINGHOUSE. ELASTIC FLUID TURBINE.

' APPLICATION FILED IAE ZB, 1905.

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j 'wu- ATTORNEY UNITED STATES PATENT FFIQE.

GEORGE WESTINGHOUSE, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR 'lO Till) Wl lFllNt'i- HOUSE MACHINE COMPANY, A CQRPORATION Ql PENNSYLVANIA.

ELASTIC-FLUID TURBINE.-

N 0. 866,171. Specification of Letters Patent. Patented Sept. 17, 1907.

Application filed March 28, 1905- Serial No. 252,430.

To all whom it may concern: I stationary vanes 9 are mounted to the stator in an in-' Be it known that l, Gnonon Wnsrmonousn, a eiti- Clillmlposition corresponding to the inclination of the zen of the United States, and a resident of Pittsburg, rotor blades, and between the ends ot' the vanes U and in the county of iillcghenyand State of Ptmnsylvania, the rotor, sullit-icnt clearance it) is provided 5 have invented a new and useful Improvement in Elas- Thediliit-ttlly encountered by the radial method ol tie-Fluid Turbines, of which the following is a specimounting the blades is diagramtnatically illustrated (it) lic'ation. in l ig. 3, together with a diagrammatic illustration of This invention relates to elastic fl id tL]1l)lI l(3S the means utilized in overcoming the dilliculty. "lhe In turbines in which it i nec s ary t ]i it h rotor 5, in Fig. 3, is provided with a diagian'unatic 1() amount of radial clearancesbetwcenthe rot r and t t illustration of a radially mounted blade shown by the elements,considerable diflicnlty has been encountered d tted lines li12, lZ-dtl, and 13-14. The end of in maintaining the necessary clearan hil t1 t the dotted blade is shown in contact with the face bine is operating. The exterior casings or stationary oi the sator 7. "he figure also diagrammatically portions of the turbines are liable to and do distort. illustratesa method of inclined blade mounting, shown 15 Because of the high rotational speed to which the roby the full lines .'l1-ll8, l8-'l9 and Ki i l, which,

tors are subjected, means are r vided at th haft for the sake of COIIlpSJlSOll is mounted to the rotor 53 at bearings for allowing them-thc said rotors to rotate the same point as the radial or dotted blade. With about their gravity axes, which may not exactly an the end of the radial blade in the position shown, and

incido with their geometric axes. For th ons with the rotor revolving in the direction oi the arrow,

20 and because of certain vibrations to which the shafts the point 12 of the blade will move to some position,

' may-be subjected, the blades carried by the rotors are lelflllvo the T011018 h) the U10 h how liable to strike against the stationary ,parts and b oupies, and the blade will be distorted or bent. In broken off of or stripped from their mounting members. i-l t0 the 11.0w P i the w hhhhi is hunt The same dilliculty will be encountered if the stator and the point 12 will tend to move in thearc 12-4 5- i3 25 vanes are struck by the rotors. of a circle whose center is at some point it; in the neu- Lin object of this invention is to produce means for i X f U10 blade. miuin'iizing the harmful effects resulting from the It is evident from the diagr hat the point 12 of above dilllt'ult s and, further, for s0 mounting the the radial blade will have to move to the position of the blades and vanes that ii contact does take place be- Point 13 before it can clear, or before it is. yioldingly 3 mum 1, 5 m d h Surfaces dj nt held against the stator, and as the blade cannot travel thereto, that the said con tact will boa yielding Contact t g the (if the llhlelimlilitl will he hl'okch In the drawings accompanying this application and or stripped from its mounting member. The action forming a part thereof, Figure l. is a fragmentary view of the inclined blade in overcoming this dilliculty is in elevation of a row of turbine blades and cooperating d gralnmati al1y sh wn y the full li e hhtdej g- 3-5 vanes embodying this inve tion; Fi 2 i a j' 3. As in the case ol the radial blade, it is also shown tat-y view illustrating a now common method of tiu'contact with the lace oi the stator, but it is so poing the blades and vanes on their respective lt'olding sitioned that the point 18, corresponding to the point members: Fig. fl is a diagram essential in the further t the (hill blade is lmhll lll with 7 description ol'tho invention. choc to the motion of the rotor.

0 in Fig. 2, the blades 4, which are radially mounted As the point 16 is the center of the are through which on tho rotor'i'i by any suiluble ziiethod, are tied tothe point; 18 will tend to move during the bending ol' 9 othor at their outer ends by a binding strip (i. llethe blade, it is evident, that the blade will readily tween the outer ends of the blades 4 and the stator yield to the external pressure of the stator, as the are element, clearance 8 provided, which under all nor Iii-22 through which the point l8 will move does not.

45 mal t'otlrlltions isconsiderod suilicicnt. 'iheslatimrary cut the line 17.

vanes U are radially mounted to the statbr 7 and a simi The action oi the blades illustrated l. of course, it) lar clearance is provided. exaggerated for the suite of description, but will aptly ln Fig l, the blades are mounted to Ibo rotor and apply to the stator and t0 the inclined method of inclinedrourwardly from a radial position, or in a. dimounting the vanes. 5t) rection opposite to that of rotation of the rotor, which In his. 2 the edge 20 of the blades ofvnueseorrois shown by the arrow. The ends of the blades are in spendswith the point l2 in the exaggerated blade of this case also tied together by a binding, strip 1; and bc- Fig.3, and the edge 21 oi the blades and vanes in Fig. l twecii the ends of the blades and the stator 7 sullieicnt; corresponds with the point 18. clearance 8 is providbd for normal conditions. The, The tendency of the inclined blades to straighten out;

under the influence of the centrifugal force and to occupy radial positions is overcome by the action of the binding strip 6 to which the ends of the blades are rigidly mounted, as a change in the relative position of the blades would tend to distort the portion of the binding strip between the separate blades.

Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is:

1. in an elastic fluid turbine, rotor blades mounted so as to incline rcarwardly from radial lines and stator vanes inclining forwardly from radial lines in relation to the diroot ion of rotation of lhe rotor, and means for tying the ouier ends of a plurality ot'said; blades together.

2. in combination in an o istic iluid turbine. a rotor.

lying the outer ends of a plurality of said blades together.

Ii. In combination in an elastic fluid turbine, a rotor elo- Til(l\i' provided with annular rows or rcarwardly-inclined rotating blades oxlondingdn close proximity with the lurblno casing and a stator element provided with annular rows of forwardlyinclined stationary van'es interleaving with said rows of moving blades. Q

4. In combination in an elastic fluid turbine, a plurality ofannular rows of rearwardly-inclined moving blades and alternate rows of forwardly-inclined stationary vanes.

- 5. In combination in an elastic fluid turbine, a stator ele merit provided with an annular row of inclined stationary blades and means for tying the outer or free ends of said bladestogether. v

(l. in combination in an elastic iiuid turbine, a stator element provided with an annular row of forwardly inclined stationary blades and means for tying the outer or free ends of said blades together.

7. In combination in an elastic fluid turbine, a stator element provided with two or more annular rows of inclined stationary blades and means for tying the outer or free" ends of the blades of each row togethern 8. In combination in an elastic Iiuid turbine, a, stator ele ment provided with two or more annular rows of forwardly inclined stationary blades and means for tying the outer or free ends of the blades of cach row together.

in testimony whereof, I have hereunto subscribed my name this seventeenih day of March,' 1905.

(mo. wnsrmonousu.

Witnesses:

l).\\'ll7 \VILLIAMS,

' .lyo. S. GnunN. 

